[Tutor] Help With Code

[jordan smallwood]

Hey there,

I have this code below (in to cm conversion) and I want to have the user try again if they enter in a non integer. What am I missing:

ConversionConstant = 2.54

def CalculateCentimeters(inches):
    return ConversionConstant * inches

def CalculateInches(centimeters):
    return centimeters / ConversionConstant

try:
    value = float(raw_input('Please enter a number: '))
except ValueError:
    print "Not a valid number."
    
conversion_type = raw_input('Please enter a unit of measure (C/I)? ')

output = None
if conversion_type == 'C':
        output = CalculateInches(value)
        print "That's", output, "inches!"
elif conversion_type == 'I':
        output = CalculateCentimeters(value)
        print "That's", output, "centimeters!"
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